Centrifugal separator.



PATENTED AUG. '7, 1906. J. J. BERRIGAN. CENTRIPUGAL SEPARATOR.

APPLICATION FILED Nov. 7, 1905 s SHEETS-SHEET 1.

i PATENTBD AUG. 7, 1906.

' J. J. BERRIGAN.

GENTRIPUGAL SEPARATOR.

APPLICATION FILED NOV. 7. 1905.

3 SHEETS-SHEET Z.

INVENTOR BY/@MJ @ATTRN Y -vv|TNEssES= v pw N0. 827,903. PATENTED AUG.'7, 1906.

- J. J. BERRIGAN.

CENTRIFUGAL SEPARATOR- APPLIUATION FILED NOV. 7, 1905.

3 SHEETS-SHEET 3.

mmm

WITNESSES: INVENTOR ATTORNEY J. BERRIGAN, OF

PATENT oEErcE.

ORANGE, NEW JERSEY.

CENTRIFUGAL SEPARATOR.

No. s273903.

Specification of Letters Patent.

Patented Aug. 7, 1906.

Application filed November 7, 1905. Serial No. 286.194.

To a/ZZ whom. it may concern:

Beit known that I, JOHN J. BERRIGAN, of

Orange, Essex county, New Jersey, have invented a new and usefulImprovement in Centrifugal Separators, of which the follow-` ing isaspeciflcation.

The lnvention relates to centrifugal separators for solids and liquids.

The rinciple of the invention consists in subjecting the combined solidsand liquids to separation in order to remove the greater part of the liuid, then conveying the residual solid, wit such liquid as may remaincombined with it, through a series of frustoconical chambers disposed ina rotary cylinder, with their common central axis arallel 'to thecylinder-axis of rotation, (an hence eccentricall placed in saidcylinder,) in each of which c ambers the solid materials are firstprojected outwardly centrifugally and then moved centripetallyto thecentral outlet leading to the next chamber. The liquid accumulates atthe point of greatest eccen-fr tricity of each chamber and may escapetherefrom by an independent outlet therein, and the solid materia isdried by being conveyed out of the accumulated liquid in each chamberand around the substantially dry inner periphery thereof, while at thesame time it is moved onward to the chamber next in succession, andfinally to the outlet from the machine.

The invention consists in the construction hereinafter set forth, whichembodies said princi le, and in the particular combinations reqixte hinthe claims. d F A t eaccom an rawin s, igure lis a verticallongitudii-iiv sectior of the machine. Fig. 2 is an enlarged similarsection of the feed end of the machine. Fig. 3 is a sec- `tion-on theline 3 3 of Fig. 1.

Similar numbers and letters of reference indicate like parts.

1 is a horizontal cylinder within which the working parts' of themachine are inclosed. On the head 2 of said cylinder is a hollowAtrunnion, received in a bearing in the fixed standard 3. Bolted to theop osite head 4 of saidy cylinder is a cylindica casing 5, on which isformed a hollow trunnion, which is received in a bearing inthe fixedstandard 6. Standards 3 and 6 rest upon the bed 7 ofthe machine. Thedriving-pulley 8 is fast upon the. cylinder-trunnion. Power iscommunicated: to said pulley by any suitable belt,

(not shown,) and in that/Way cylinder 1 is caused to rotate.

9 is the feed-hopper, supported on bracket 10, extending from standard3.

The combined solid and liquid materials to be separated are conveyedinto the cylinder of which is supported at one end ill a bearing on thebracket 10 and carries thesprocketwheel 12. The other end'of saidconveyer- Ashaft is stepped in a wall of a chamber 13, formed upon theinside of the {Jead 2, which chamber by means of the inc ined duct 14communicates with the interior of a cylinder 15, which is eccentricallydisposed within the b cks 16 and ring i7. One end 1.8 of the cylinder 15is frusto-conical and communicates with an outlet.- duct 19, whichextends through the wall of cylinder 1 and communicates with-the fixedannular chamber 20, in which the cylinder 1 freely turns.

Passing through the hollow trunnion at the delivery end of the machineand entering the casing 5 is a shaft 21, which is held in stationaryposition by a lever-arm 22, fast on the outer end of said shaft,whichlever-arm is connected by a rod 23 with the bed of the machine. Anyother convenient means may be used for holding said shaft stationary.Within the casing 5 the shaft 21 carries a pinion 24, which engages witha inion 25 on a shaft journaled in the casingead and the head 4 ofcylinder 1. On the same shaft as pinion 25 is a pinion 26, which enga eswith a gear 27 on the end of a shaft 28, whic extends axially throughthe c linder 15. Said vshaft 28 is supported in ro ler-bearings insleeves 29 `and 30, formed, respectively, on the head 4 of cylinder 1and the wall of chamber 13,

V the said sleeves being provided with annular bars 36, upon which barsare secured convey- 1 by means of a screw conveyer 11, the shaft clinder 1 and supported therein by the IIO io by any suitable outlet.

ing-Scrapers 37. Some of these scrapers act upon the material which iscentrifugally de-l posited on the inner side of the wall of cylinder 15and others act upon said material depositod on the inner peripheries ofthe frustoconical partitions therein.

In the cylinder-head 2 is an opening -39 for the escape of liquid intothe annular xed chamber 40, from which said liquid escapes Passingthrough the' Walls of both cylinders 1 and 15 and entering theseparating-chambers B C D are open tubes 41. There may also be an oening 42 in the cylinder-head 2 near tov tile center thereof. A

On the hub -of the driving-pulley 8 is a lsprocket-wheel 42, which bymeans `of the belt 43 transmits motion to a sprocket-wheel 44 on the endof shaftv 45, which extends 2o through the bed 7 of the machine andcarries at its farther extremity a sprocket-wheel 46, .which by chainbelt 47 rotates sprocketwheel 12.

lWhen the driving-pulley 8 is rotated, the

2 5 cylinder 1 is caused to turn on its trunnions,

thus carrying the gear in planet movement around the iixed.pinion'24.Gear 25, and hence pinion 26 onthe same'shaft, is thus rotated, andyfrom pinion 26 motion is `com- 3o municated to shaft 28 to cause theScrapers to be carried around the inner surfaces of the cylinder 15 andconical partitions at a rate of speed different from that of therotation of cylinder 1'; The feed-conveyer 11 is 3 5 set in rotation bythe sprocket-chain 47.

The operation of the machine isas follows: The combined solid and liquidmaterials to be separated are introduced into the hopper 9 from the pipe48, and thence by means of the 4o screw conveyer 11 are carried into thechamber 13,/Whence by the pipe 14 they are delivered into thefirstseparating-chamber -"i in cylinder 1'5. By reason of the eccentricity ofcylinder 15 to `the axis of rotation of cylinder 1 the liquid isprojected by the centrifugal force of rotation to that part of the innersurface of cylinder 15 which is farthest distant from said axis ofrotation, as indicated at F, Fie. 3. The radial depth of liquid here 5oaccumu ating cannot exceed the distance of the outlet 39 from -lthecylinder-wall, and hence-said liquid flows from said outlet to thechamber 40 land thence to any convenient receptacle. The solid materialis carried out -5 5 of the liquid and around the inner cylindricalperiphery of chamber A b the Scrapers 37, which also conve it over theinner surface of partition 32 to t e central outlet, whence it asses tothe second separating-chamber'B.

ere the centrifugal force again throws whatever liquid may still remaincombined Withthe solid to the most eccentric'portion of said chamber,whence it drains through the smallopening 49 to the surrounding annularcham- `65 ber 50 and escapes at any suitable outlet.

partitions successively and around At e -oon- Samos The opening 49 maybe so small as not to permit any considerable escape of solids, and yetApasses by the'escape-duct 19 to the deliveryl chamber 24.

Inasmuch as the eccentricity of the-cylinder 15 results in the liquidbeing accumulated on one side of the inner surface thereof, it isobvious that the solids, which will be carried around the remainder ofthe'cylinder periphery, willpass over a substantially ldry surface, andthus be rapidly dried by vexposure to the atmosphere. Thel reater partof the combined liquid is removed inthe first separating-chamber A, andthe quantityxin chambers B C D will be successively less and very smallin amount, so that while separation goes on in the successive chambers.-the drying operation progressively prede-minates. The outer cylinder 1,with the supportingblocks 16 and ring 17, operates to balance theeccentric cylinder 15. Any number of frusto-conical partitions' may beemployed, depending on the number of separatingchambers A B C, &c.,desired. The short tubes 41 serve to lead atmospheric air into 4cylinder15 to cool the interior when hot materials are being treated.

I claim- 1. In a machine for separating solids and liquids, a rotaryvessel, and a second vessel eccentrically disposed therein; the-saidinner vessel having a plurality of chambers Awherein solids arecentrifugallydprojeeted to the inner surface thereof, an alternatingwith said chambers, a plurality of devices for con-v veyin said solidscentripetally.

`2. a machine fori separating solids 'and liquids, arotary cylindricalvessel, a cylindrical vessel eccentrically disposed therein and, in saidinner vessel, a plurality of frustoconical partitions and means 'forconveyin the material to be separated throu h sail cave peripheralsurfaces thereof.

I 3. A rotary vessel, a cylindrical vesselfor IOO separating1 solids andliquids eccentricallrly' disposed t erein, the said inner vessel havingtwo communicating chambers, means forcentrifugallyjseparating -outliquid in the-*first chamber, means for conveying the Aresichia'l solidand liquid. materials, in a centripetahdirectlon to said second chamber,means'for centrifu ally tocause a second separation to projecting vsaidresidual materials outward remove quidin said .second chamber and agorneans for conveving the second residue centrlpetally to 'anescape-opening 1n said inner vessel.

4. A rotary vessel, a cylindrical vessel eccentrically disposed therein,the said inner vessel having a series of rusto-conicalseparating-chambers with their inclined walls parallel and communicatingat their smaller ends, each of said chambers having a liquidoutlet,means for feeding combinedesolid and liquid material into the large endoi the first chamber, means for conveying centrifugallydepositedmaterial through said chambers successively and niean's forcentrifugally discharging Solidsfrorn the last chamber.

5. ln a separator for solids and liquids, a horizontal rotary cylinder,a second cylinder ecccntrically 'fixed therein, and having aliquid-escape opening in one head, a seriesof frusto-conical annularpartitions in said inner cylinder, an axial shaft also in said innercylinder, conveying-Scrapers carried by said shaft and constructed tocarry the material around the inner periphery of said inner cyl- ,inderand partitions and to deliver the saine through the clearance-spacebetween said partitions and shaft, means for Yfeeding conibinedmaterials into the chamber between said cylinder-head and the firstpartition of the seriesand an outlet-duct for solids at the opposite endof said inner cylinder.

In testimony whereof' l have signed nay nameto this specification in thepresence of two subscribing witnesses.

- JOHN J. BERRXGAN. Witnesses:

WM. H. SIEGMAN. .PARK BENJAMrN- Jr.

